diff --git a/02week/tests.js b/02week/tests.js
index e69de29bb..4fa1cb35a 100644
--- a/02week/tests.js
+++ b/02week/tests.js
@@ -0,0 +1,92 @@
+'use strict';
+
+const assert = require('assert');
+const readline = require('readline');
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout
+});
+
+
+function rockPaperScissors(hand1, hand2) {
+  hand1 = hand1.trim().toLowerCase();
+  hand2 = hand2.trim().toLowerCase();
+  const validEntries = ['rock', 'paper', 'scissors'];
+  if (!validEntries.includes(hand1) || !validEntries.includes(hand2)) {
+    return "Please enter rock, paper, or scissors.";
+  }
+  if (hand1 === hand2) {
+    return("It's a tie!");
+  }
+  else if (hand1 === 'rock') {
+    if (hand2 === 'paper') {
+      return("Hand two wins!");
+    }
+    else if (hand2 === 'scissors') {
+      return("Hand one wins!");
+    }
+  }
+  else if (hand1 === 'paper') {
+    if (hand2 === 'rock') {
+      return("Hand one wins!");
+    }
+    else if (hand2 === 'scissors') {
+      return("Hand two wins!");
+    }
+  }
+  else {
+    if (hand2 === 'rock') {
+      return("Hand two wins!");
+    }
+    else if (hand2 === 'paper') {
+      return("Hand one wins!");
+    }
+  }
+}
+
+
+function getPrompt() {
+  rl.question('hand1: ', (answer1) => {
+    rl.question('hand2: ', (answer2) => {
+      console.log( rockPaperScissors(answer1, answer2) );
+      getPrompt();
+    });
+  });
+}
+
+// Tests
+
+if (typeof describe === 'function') {
+
+  describe('#rockPaperScissors()', () => {
+    it('should detect a tie', () => {
+      assert.equal(rockPaperScissors('rock', 'rock'), "It's a tie!");
+      assert.equal(rockPaperScissors('paper', 'paper'), "It's a tie!");
+      assert.equal(rockPaperScissors('scissors', 'scissors'), "It's a tie!");
+    });
+    it('should detect which hand won', () => {
+      assert.equal(rockPaperScissors('rock', 'paper'), "Hand two wins!");
+      assert.equal(rockPaperScissors('paper', 'scissors'), "Hand two wins!");
+      assert.equal(rockPaperScissors('scissors', 'rock'), "Hand two wins!");
+      assert.equal(rockPaperScissors('rock', 'scissors'), "Hand one wins!");
+      assert.equal(rockPaperScissors('paper', 'rock'), "Hand one wins!");
+      assert.equal(rockPaperScissors('scissors', 'paper'), "Hand one wins!");
+    });
+    it('should scrub input to ensure lowercase with "trim"ed whitepace', () => {
+      assert.equal(rockPaperScissors('rOcK', ' paper '), "Hand two wins!");
+      assert.equal(rockPaperScissors('Paper', 'SCISSORS'), "Hand two wins!");
+      assert.equal(rockPaperScissors('rock ', 'sCiSsOrs'), "Hand one wins!");
+    });
+    it('should only accept "rock, paper, or scissors"', () => {
+      assert.equal(rockPaperScissors('ball', 'hat'), "Please enter rock, paper, or scissors.");
+    })
+  });
+} else {
+
+  getPrompt();
+
+}
+
+
+
+